CN217735470U - Double-row material soft shaft type coal seam cutting device - Google Patents
Double-row material soft shaft type coal seam cutting device Download PDFInfo
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- CN217735470U CN217735470U CN202121763335.0U CN202121763335U CN217735470U CN 217735470 U CN217735470 U CN 217735470U CN 202121763335 U CN202121763335 U CN 202121763335U CN 217735470 U CN217735470 U CN 217735470U
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Abstract
The utility model discloses a double-row material flexible shaft type coal seam cutting device, which comprises a double-row material spiral flexible shaft cutter crossing the coal seam to be cut and a walking driving mechanism positioned in roadways at two sides of the coal seam; the double-discharging spiral flexible shaft cutter comprises a flexible shaft unit, a universal joint, a left discharging cutter body and a right discharging cutter body; the flexible axle unit links together through the universal joint and forms central flexible axle, the spiral opposite direction of left side row material cutter body and right side row material cutter body, the utility model aims at in the face of the thicker situation in coal seam, adopt by the coal seam middle part to the double material spiral flexible axle cutter of both sides synchronous transport material, the cinder that makes the production can discharge the cutting joints rapidly, double material spiral flexible axle cutter has crooked deformability, provide the rotatory and power that advances forward of spiral flexible axle cutting knife by the running driving mechanism, double material spiral flexible axle cutter's deformability can have the deformability of adaptation after the hard thing of cutting in-process contact, avoid producing rigid stress, make double material spiral flexible axle cutter damage.
Description
Technical Field
The utility model belongs to the technical field of colliery gas is administered, concretely relates to double soft shaft type coal seam cutting device of material.
Background
The most common means for treating the gas in the coal mine underground coal seam in China is to arrange dense drill holes, guide a negative pressure pipeline into the drill holes after plugging, and extract the gas existing in the coal seam by using the negative pressure pipeline, so that the gas concentration in the coal seam is reduced, and the production safety in the later coal seam mining process is ensured.
The existing drilling mode adopts the arrangement of dense drilling holes, a plurality of holes communicated with a roadway are formed in a coal seam, hole packers are arranged in each hole, and negative pressure pipeline networking is formed by each hole packer pumping hole and a negative pressure pipeline to extract gas, so that the mode has the following problems:
1. intensive drilling, unit area, large number of drilled holes, large consumption of manpower and material resources for each drilled hole and low additional value;
2. the hole diameter of the drill hole is limited, the effective area of the coal bed for releasing gas is small, the gas is slowly desorbed in the coal bed, and the extraction period is long;
3. accidents such as gas outburst and orifice spraying and the like easily occur in the drilling, the safety coefficient is low, and the accidents are easily caused;
4. the hole collapse phenomenon is easy to occur in the drilled hole, and the gas is not easy to release and extract;
5. the drilling is accompanied with the processes of hydraulic flushing, high-pressure water fracturing, hole making and the like, the labor and the financial resources are consumed, and the manual workload is large;
the existing process also has the problem that the hydraulic punching gas extraction technology is adopted to improve the air permeability of the coal body, and the problems of frequent gas overrun, easy artificial induction outburst and the like exist in the execution process.
Therefore, the existing drilling mode for treating the gas has the problems of large drilling quantity, complex process, high labor intensity, large investment of manpower, material resources and financial resources and high maintenance cost, so that a new process and a new technology which can replace the low treatment cost of the gas in the coal mine and matched high-performance mining mechanical equipment need to be searched urgently, and based on the new technology, the double-discharging flexible shaft type coal seam cutting device is necessary to be researched.
Disclosure of Invention
Defect and problem to the existing equipment existence, the utility model provides a double soft shaft type coal seam cutting device of expecting, the effectual coal seam exploitation degree of difficulty that exists among the existing equipment of having solved is big, problem that the input cost is high.
The utility model provides a scheme that its technical problem adopted is: a double-discharging flexible shaft type coal seam cutting device comprises a double-discharging spiral flexible shaft cutter crossing a treatment coal seam and a walking driving mechanism positioned in roadways at two sides of the treatment coal seam; the walking driving mechanism comprises a walking platform and a driving motor or a hydraulic motor, the driving motor or the hydraulic motor is arranged on the walking platform, and a supporting sleeve corresponding to an output rotating shaft of the driving motor or the hydraulic motor is arranged on the walking platform; the double-discharging spiral flexible shaft cutter comprises a flexible shaft unit, a universal joint, a left discharging cutter body and a right discharging cutter body; the flexible shaft units are connected together through universal joints to form a central flexible shaft, the spiral directions of the left discharging cutter body and the right discharging cutter body are opposite, the left discharging cutter body and the right discharging cutter body are fixedly arranged on the central flexible shaft, a protruding cutter head is arranged on the outer side of the central flexible shaft, and two ends of the central flexible shaft are respectively sleeved in supporting sleeves on the corresponding sides and are in transmission connection with the output rotating shaft.
Furthermore, a reinforced support frame is fixed on one side of the walking platform, and the support sleeve is fixed at the end part of the reinforced support frame and corresponds to an output rotating shaft of the driving motor or the hydraulic motor.
Furthermore, the walking platform is provided with a walking crawler belt, the walking platform is provided with a supporting oil cylinder vertically arranged, the upper part of the supporting oil cylinder is provided with a supporting seat, and the driving motor or the hydraulic motor is arranged on the supporting seat.
Furthermore, the central flexible shaft is spirally provided with a continuous spiral conveying body and interrupted cutter bodies, the spiral conveying body and the interrupted cutter bodies take the central flexible shaft as the center, the spiral directions of the left side and the right side are opposite, each flexible shaft unit is provided with an independent cutter body, the cutter heads on the cutter bodies protrude out of the spiral conveying body, and the spiral conveying bodies on the left side and the right side are sequentially and spirally connected with the flexible shaft units to form a continuous left discharging channel and a continuous right discharging channel.
Furthermore, both ends of the central flexible shaft are connected with a driving shaft through universal joints, the driving shaft is sleeved in the supporting sleeve and is in transmission connection with the output rotating shaft, the cutter body is spirally arranged on the central flexible shaft, and cutter heads are arranged on the outer side surface of the cutter body at intervals.
Furthermore, the left discharging cutter body and the right discharging cutter body are the same in length.
The utility model has the advantages that: the utility model discloses utilize the working face tunnel condition in the coal seam, utilize two spiral coal seam slotting gas to administer the soft layering of certain thickness in the technical equipment direct saw adopts the coal seam, form the extraction of the whole coal body in the working face within range, the vacuole formation, make soft layering top coal body take place down displacement and expansion deformation, soft layering bottom coal body takes place upward displacement and expansion deformation, thereby make the whole inflation of the coal body of not saw adopting in the coal seam, the crack increases, increase the passageway of gas release, make a large amount of gas naturally discharge entering working face tunnel space under the mining influence in the coal body.
Based on this, the utility model provides a be located the travel drive mechanism who administers coal seam both sides tunnel, travel drive mechanism is connected with the both ends transmission of double material spiral flexible axle cutter, utilizes travel drive mechanism to provide rotation and the propulsive power for double material spiral flexible axle cutter, utilizes driving motor or hydraulic motor to provide rotation power promptly, utilizes the synchronous walking of both sides walking platform to drive double row material spiral flexible axle cutter and impels forward, treats the coal seam and cuts, the utility model discloses in double material spiral flexible axle cutter uses the middle part as the center, and the opposite row of spiral direction expects the cutter body both sides are arranged, under the same state of direction of rotation, and left side row expects that cutter body and right row expects that the cutter body can cut waiting to cut the coal seam, and the cinder that the cutting produced can be carried to both sides, is applicable to the coal seam cutting of waiting of width broad, has reduced the outside stroke of carrying of cinder, avoids the cinder to remain in the cutting seam.
Simultaneously the utility model discloses well cutter body that is used for cutting the coal seam is continuous or intermittent structure, and to intermittent structure, the cutter body independently sets up on flexible axle unit, in order to make the transport that the coal seam of cutting can be smooth to the outside, has still set up continuous screw feed body on central flexible axle, forms continuous row's material passageway.
The utility model provides a full coal seam slot process and equipment embodiment, adopt spiral cutting knife discharge slot buggy, the discharge of slot efficiency and slot buggy has been improved, the coal seam gas permeability has greatly been improved simultaneously, reduce the intensity of labour and the gas drainage cycle of drilling construction, adopt helical blade to inlay the mode of cutting knife, to the coal seam gap of cutting out one, it is anti-reflection to the coal seam release, the process that has changed current gas control, the work load of tunnelling the tunnel in the pit has been reduced, coal seam equipment structure is simple, conveniently extract gas, the characteristics of security improve. Compared with the traditional permeability increasing method, the labor intensity of drilling construction and the gas extraction period are reduced, meanwhile, a gas extraction blank zone caused by the deviation of a drilling track is eliminated, and the effectiveness of the outburst prevention effect is improved. In addition, automatic control can be realized in the cutting process, and potential safety hazards which may be caused are greatly reduced.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
Fig. 2 is a schematic structural diagram of another embodiment of the present invention.
Fig. 3 is a schematic structural view of the travel driving mechanism.
Fig. 4 is a schematic structural diagram of a double-discharging spiral flexible shaft cutter.
Fig. 5 is a schematic view of the structure of the usage state of the present invention.
The reference numbers in the figures are: 1 is walking platform, 2 is driving motor or hydraulic motor, 3 is the output pivot, 4 are the support cover, 5 are strengthening the support frame, 6 are spiral flexible axle cutting knife, 61 is the flexible axle unit, 62 is the universal joint, 63 is the drive shaft, 64 is left row material cutter body, 65 is right row material cutter body.
Detailed Description
The present invention will be further explained with reference to the drawings and examples.
Example 1: the embodiment aims at providing a double-discharging flexible shaft type coal seam cutting device, and mainly used single tunnel working face construction is used for cutting the coal seam, produces the cutting seam, and to current coal seam construction mode, the coal seam exploitation degree of difficulty is big, and the input cost is high, and based on this, this embodiment provides a double-discharging flexible shaft type coal seam cutting device.
As shown in fig. 1, the present embodiment mainly relates to a double-discharging flexible shaft type coal seam cutting device for the case that a coal seam to be cut is thick, and comprises a double-discharging spiral flexible shaft cutter 6 crossing the coal seam to be cut and a walking driving mechanism located in roadways at two sides of the coal seam to be cut; the roadways on the two sides are respectively a machine roadway and an air roadway, a through primary cutting hole is dug in the coal seam to be cut between the machine roadway and the air roadway, the length of the primary cutting hole is longer under the condition that the coal seam to be cut is thicker, in order to facilitate discharging, the double-discharging spiral flexible shaft cutter 6 is placed into the primary cutting hole, and coal cinder generated by cutting is discharged into the roadways on the two sides from the middle part respectively.
In specific implementation, as shown in fig. 2, the walking driving mechanism is arranged in the machine lane and the air lane, the walking driving mechanism comprises a walking platform 1, a driving motor or a hydraulic motor 2 and a reinforcing support frame 5, the driving motor or the hydraulic motor 2 is arranged on the walking platform 1, the reinforcing support frame 5 is fixed on one side of the walking platform 1, and a support sleeve 4 corresponding to an output rotating shaft of the driving motor or the hydraulic motor 2 is arranged at the end part of the reinforcing support frame 5; support cover 4 is bearing or axle sleeve, strengthens the fixed brace of level and bracing that support frame 6 set up including an organic whole, and the level is fixed to be propped and is fixed on the supporting seat, and the tip of bracing sets up the outer tube, and bearing or axle sleeve suit are at the outer tube to set up a set of or multiunit, support the structural strength that the cover mainly used strengthened spiral flexible axle cutting knife 6, spiral flexible axle cutting knife 6 provides stable drive end simultaneously.
This embodiment is in order to realize the walking function, be provided with the walking track on walking platform 4, it follows vertical support cylinder that is provided with to install on the walking platform, upper portion at support cylinder is provided with the supporting seat, support cylinder is used for adjusting the height of supporting seat, make spiral flexible axle cutting knife 6 and cutting seam's high matching, driving motor or hydraulic motor 2 and speed reducer are installed on the supporting seat, it fixes one side at the supporting seat to strengthen support frame 6, the tip of strengthening support frame 6 is provided with the support cover 4 that corresponds with driving motor or hydraulic motor's output pivot, the tip of backup pad still is provided with the operation workstation, be provided with intelligent display screen and display instrument on the operation workstation.
In order to realize double-side discharging, the double-discharging spiral flexible shaft cutter 6 in the embodiment comprises a flexible shaft unit 61, a universal joint 62, a left discharging cutter body 64 and a right discharging cutter body 65; the flexible shaft unit 61 is connected together through a universal joint 62 to form a central flexible shaft, the left discharging cutter body 64 and the right discharging cutter body 65 are the same in length, the spiral directions of the left discharging cutter body 64 and the right discharging cutter body 65 are opposite, the left discharging cutter body and the right discharging cutter body are fixedly arranged on the central flexible shaft, a protruding cutter head is arranged on the outer side of the central flexible shaft, and two ends of the central flexible shaft are respectively sleeved in the support sleeves 4 on the corresponding sides and are in transmission connection with the output rotating shaft 3.
The embodiment aims at facing the situation that a coal seam to be cut is thick, the double-discharging spiral flexible shaft cutter for synchronously conveying materials from the middle part of the coal seam to be cut to two sides is adopted, so that generated coal slag can be rapidly discharged out of a cutting seam, the double-discharging spiral flexible shaft cutter 6 has bending deformation capacity, the walking driving mechanism provides power for rotating and pushing the spiral flexible shaft cutter forwards, the deformation capacity of the double-discharging spiral flexible shaft cutter 6 can be matched with the deformation capacity after contacting with a hard object in the cutting process, the generation of rigid stress is avoided, and the double-discharging spiral flexible shaft cutter is damaged.
The utility model discloses on the basis of the coal seam has tunneled formation working face tunnel and the primary cut hole, stop the outer certain distance construction working face tunnel of line of adopting at the working face, form "returning" type tunnel system in the mining district section, arrange the spiral coal seam slot gas treatment technical equipment of two sides that utilizes the universal joint to connect at the working face for the coal seam slot, saw adopt thickness steerable about 200mm, the slot thickness should not be too big, in order to prevent that coal and gas outburst accident take place during the slot.
As shown in fig. 5, in the embodiment, the double-discharging spiral flexible shaft cutter uses the middle part as the center, discharging cutter bodies with opposite spiral directions are arranged on two sides, and in the state of the same rotation direction, the left discharging cutter body and the right discharging cutter body can cut a coal seam to be cut, coal slag generated by cutting can be conveyed to two sides, so that the double-discharging spiral flexible shaft cutter is suitable for cutting the coal seam to be cut with a wider width, the travel of outward conveying of the coal slag is reduced, the coal slag is prevented from remaining in a cutting seam, coal with the cutting seam is discharged to two sides through spiral blades, a space of a coal system can be sawed by using a closed working face, after the coal seam is cut out, a space of displacement and expansion deformation is created for coal bodies outside the seam of the coal seam, so that coal body cracks are increased, desorption and emission of gas are accelerated, high-concentration gas in the seam cutting space of the saw is extracted by using a gas extraction pipe, thereby realizing pressure relief extraction of gas in an extracted section, and achieving the purpose of eliminating outburst.
Example 2: this example is substantially the same as example 1, except that: the structure of the double-discharging spiral flexible shaft cutter is further explained in the embodiment.
In this embodiment, as shown in fig. 4, two ends of the central flexible shaft are connected with a driving shaft 63 through a universal joint 62, the driving shaft 63 is sleeved in the support sleeve 4 and is in transmission connection with the output rotating shaft 5, the left discharging cutter body 64 and the right discharging cutter body 65 are spirally arranged on the central flexible shaft, and cutter heads are arranged on the outer side surfaces of the left discharging cutter body 64 and the right discharging cutter body 65 at intervals.
The central flexible shaft of the embodiment is in transmission connection with the output rotating shaft 5 through the driving shaft 63, the driving shaft 63 receives power provided by the speed reducer, and the driving shaft can be in a horizontal state under the action of the supporting sleeve, so that torque on the output rotating shaft is avoided, and the safety of driving equipment is improved.
Example 3: this example is substantially the same as example 1, except that: this embodiment provides the double spiral flexible axle cutter of material of another kind of structure.
The central flexible shaft is spirally provided with a continuous spiral conveying body and interrupted cutter bodies, the spiral conveying body and the interrupted cutter bodies take the central flexible shaft as the center, the spiral directions of the left side and the right side are opposite, each flexible shaft unit is provided with an independent cutter body, the cutter heads on the cutter bodies protrude out of the spiral conveying body, and the spiral conveying bodies on the left side and the right side are sequentially spirally connected with the flexible shaft units to form a continuous left discharging channel and a continuous right discharging channel.
In the embodiment, the intermittent cutter body and the cutter head on the outer side of the intermittent cutter body are used for cutting the coal bed, and the spiral conveying body is used for continuously conveying the generated coal slag, so that the coal slag can be smoothly discharged out of a cutting joint.
Claims (6)
1. The utility model provides a double flexible axle formula coal seam cutting device which characterized in that: comprises a double-discharging spiral flexible shaft cutter crossing the coal bed to be treated and a walking driving mechanism positioned in roadways at two sides of the coal bed to be treated; the walking driving mechanism comprises a walking platform and a driving motor or a hydraulic motor, the driving motor or the hydraulic motor is arranged on the walking platform, and a supporting sleeve corresponding to an output rotating shaft of the driving motor or the hydraulic motor is arranged on the walking platform; the double-discharging spiral flexible shaft cutter comprises a flexible shaft unit, a universal joint, a left discharging cutter body and a right discharging cutter body; the flexible shaft units are connected together through universal joints to form a central flexible shaft, the spiral directions of the left discharging cutter body and the right discharging cutter body are opposite, the left discharging cutter body and the right discharging cutter body are fixedly arranged on the central flexible shaft, a protruding cutter head is arranged on the outer side of the central flexible shaft, and two ends of the central flexible shaft are respectively sleeved in supporting sleeves on the corresponding sides and are in transmission connection with the output rotating shaft.
2. The double-discharging flexible shaft type coal seam cutting device according to claim 1, characterized in that: and a reinforced support frame is fixed on one side of the walking platform, and the support sleeve is fixed at the end part of the reinforced support frame and corresponds to an output rotating shaft of a driving motor or a hydraulic motor.
3. The double-discharging flexible shaft type coal seam cutting device according to claim 1, characterized in that: the walking platform is provided with a walking crawler belt, the walking platform is provided with a supporting oil cylinder vertically arranged, the upper part of the supporting oil cylinder is provided with a supporting seat, and the driving motor or the hydraulic motor is arranged on the supporting seat.
4. The double-discharging flexible shaft type coal seam cutting device according to claim 1, characterized in that: the central flexible shaft is spirally provided with a continuous spiral conveying body and interrupted cutter bodies, the spiral conveying body and the interrupted cutter bodies take the central flexible shaft as the center, the spiral directions of the left side and the right side are opposite, each flexible shaft unit is provided with an independent cutter body, the cutter head on each cutter body protrudes out of the spiral conveying body, and the spiral conveying bodies on the left side and the right side are sequentially and spirally connected with the flexible shaft units to form a continuous left discharging channel and a continuous right discharging channel.
5. The double-discharging flexible shaft type coal seam cutting device according to claim 1, characterized in that: the two ends of the central flexible shaft are connected with a driving shaft through universal joints, the driving shaft is sleeved in the supporting sleeve and is in transmission connection with the output rotating shaft, the cutter body is spirally arranged on the central flexible shaft, and cutter heads are arranged on the outer side surface of the cutter body at intervals.
6. The double-discharging flexible shaft type coal seam cutting device according to claim 1, characterized in that: the left discharging cutter body and the right discharging cutter body are the same in length.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121763335.0U CN217735470U (en) | 2021-07-30 | 2021-07-30 | Double-row material soft shaft type coal seam cutting device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121763335.0U CN217735470U (en) | 2021-07-30 | 2021-07-30 | Double-row material soft shaft type coal seam cutting device |
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| CN217735470U true CN217735470U (en) | 2022-11-04 |
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| CN202121763335.0U Active CN217735470U (en) | 2021-07-30 | 2021-07-30 | Double-row material soft shaft type coal seam cutting device |
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2021
- 2021-07-30 CN CN202121763335.0U patent/CN217735470U/en active Active
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